Connecting-rod bearing.



H. JQ SHELDRUP & 0. O. MALAND.

CONNECTING ROD BEARING. APPLICATION HLED JAN. 29, 19W.

Pteufed May 15, 191?.

WITNESSES w 0 1, V, V y vWMM m 5 a M Q m Mo 0 MM, #0

HILDAB J. SHIELDED? AND 011E O. MALAND, F FELICAN RAPIDS, MINNESOTA.

oonnnormq-non madame,

and OLE 0. Mil AND, citizens of the United combustion engines,

States, and residents of Pelican Rapids, in

the county of Ottertail and State of Minneha-v'e invented a certain newand useful sota, Improvement in Connecting-Rod Bearings, of which thefollowing is a specification.

Our present invention relates generally to connecting rods utilized toconnect the movable pistons and the crank shafts of internal and moreparticularly to the bearings thereof upon the crank shafts, our objectbeing" to, provide an inn proved bearing whereby to maintain the bearingsurfaces of the connecting rod and crank and offset the wear, and toeliminate undue and uneven wear.

The means proposed by our invention for the accomplishment of the aboveobjects, and certain'othersto be hereinafter made plain, are shown inthe accompanying drawing, forming a part of thls specification, and

in which:

Figure l is a front elevation illustrating a connecting rod and crankshaft in operative relation, and provided with our improvements I i Fig.2 is a vertical section taken substantially on line 2'-2 of Fig. 1, and

Fig. 3 is a horizdntal section through oer.- tain of the parts, takensubstantially on line 3 -3 of Fig.

Referringinow to these figures, we have shown a connecting rod at 10,and a crank.

shaft at 11, the connecting rod having a cylindrical bearing-.12 at itslower end for the reception of the crank 13 of the shaft 11.

In accordance with our invention,the lower half or semi-cylindricalportion 14: of the bearing 12 is in a separate piece, hingedly connectedside of the upper'portion 12, by means of a hinge pin 15, the oppositeside of the per; tions 12 and 14 of the bearing being provided withopposing flat faces 16, normally spaced apart in order to provide forrelative movement of the respective side of the bearing, in taking whenin use.

In order that the parts may be automatically adjusted to will at the sme time eliminate undue wear owing to plalv in the loose hearing, auwellas uneven wear from the same cause, we provide the rigid and movablepoons 12 up the wearof the bearing Specification of Letters Patent .ingsadapted to aline upper rigid at one side to the corresponding.

take up such wear, which J Patented May 15, rear.

a sea filed January as, lair. serial No. mania.

and 14 of the bearing with alined openings at substantially a rightangle with respect to the axis of the bearing, through which openings isextended a connecting pin 17 with oneend headed at 18, and with itsopposite end threaded at 19 and provided .with a reduced extension 20threaded at its extremity as seen at 21. Upon the threaded portion 19 ofthe pin 17 is screweda nut 22, having a reduced collar portion 23forminga guide for the lower portion of a spring 24 coiled around thereduced extension thereto, with its lower end bent and extending withinan opening in the upper outer surface of the nut 22, as clearly seen by'a comparison of Figs. 1 and 3. The upper'end of spring 24 is similarlybent and extended through the opening of the nut 25, the latter beingadapted to screw upon the end thread 21 of the extension 20, and being20 in spaced relation provided with diametrically opposed openwith anopening 26 of the extension 20, to receive a locking pin 27 shown inFig. 1.

Thus, after the nut 22 has been screwed upon the threads 19 of the pin17 firmly against the adjacent surface of the rigid portion 12 of thebearing, the screwing of the nut 25 upon the threads 21 of the extension20 will twist the spring 2% so as to place the latter under tension; thelocking pin 27 serving to hold the nut 25 in proper position, so thatthe full strength of the spring 24 will be exerted to further rotate thenut 22 for the purpose of moving the lower portion 1 1 of the bearing"toward the portion 12 in taking up wear in use. I

It is obvious that our invention provides simple, strong, and durablemeans for the purpose which will be efficient in use, and which willoperate to eliininate all undue and uneven wear of the b ing' as aresult of the constant automatic take-up of p'lay between the same andthe c'rank 13.

- end andthrea s at its opposite'end, and provided at said latter endwith ail-extension also threaded and providedwitha transverse oprning, anut for connection with the threads of said pin and for engagementagainst one of said hearing parts, a coiled spring around the said pinextension having its inner end secured to the said nut, a nut .i'orconnection with the threads of said extension; and to which the outerend of said spring secured, said latter nut having openings to alinewith the opening of said extension, and a locking pin for engagementwith th alined openings, allsuhstan ti all y as described.

2. A. hearing or, the character. described consisting of lnngedlyconnected parts, having their opposed. free ends provided with alinedopenings, transverse with respect to the axis of the hearing, a pinextending through said openings, having a head at one end and th aid. atits opposite end and provided at said latter endwwith an extension alsothreaded, a nut for. connection with the threads'ot' said pin and forengagement against one of said hearing parts, a coiled spring around thesaid pin extension, having its inner end secured toithe said nut, a nut'for connection with the threads of said ex tension and to which theouter end. of said spring is secured, and nieai-isfor locking the lastmentioned nut to the pin extension.

3. A hearing of the character described consisting of hingedly connectedparts having their opposed free ends provided with alined openingstransverse with respect to the axis of the bearing, a pin extendingthrough said openings, having a nut at one end and threads at itsopposite end, a nut tor connection \Vltll the threadsof said pin and forengagement against one of said hear-- ing parts, and means torconstantly app1ying rotative pressure to said nut, said means includinga spring one end of which is secured to said nut, and a locked nutmounted parts, and spring controlled means for eonstantly applyingrotative pressure to said nut, for the purpose described.

HILDAR J. SHELDRUP. OLE O. MALAND.

